EP0073009A1 - Ski - Google Patents

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Publication number
EP0073009A1
EP0073009A1 EP82107505A EP82107505A EP0073009A1 EP 0073009 A1 EP0073009 A1 EP 0073009A1 EP 82107505 A EP82107505 A EP 82107505A EP 82107505 A EP82107505 A EP 82107505A EP 0073009 A1 EP0073009 A1 EP 0073009A1
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EP
European Patent Office
Prior art keywords
profile
ski
base plate
bending
supporting strap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82107505A
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German (de)
French (fr)
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EP0073009B1 (en
Inventor
Gerhard Dr. Watschinger
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0073009A1 publication Critical patent/EP0073009A1/en
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Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials

Definitions

  • the invention relates to a ski. or the like .. with a torsionally rigid core insert in the manner of a composite body consisting of at least one plate-shaped longitudinal belt and a zigzag or undulating profile or the like, the profile and the longitudinal belt being connected to one another with line contact running transversely to the longitudinal direction of the ski.
  • the flexural rigidity and torsional strength are of particular importance for the skiing properties of a ski, the flexural rigidity sliding properties, smooth running, adaptability to bumps and the like. The like. Influenced and the torsional strength is decisive above all for the behavior of the ski when using edges. In order to be able to influence these properties, which are so important for the behavior of the ski, there are various types of core inserts for the ski, and composite bodies with zigzag profiles inserted in the form of a truss between the upper and lower flange have already been proposed.
  • the invention is therefore based on the object to overcome these shortcomings and to create a ski of the kind whose core deposit without any special design effort largely independent choice of the torsion - allows the ski and bending properties.
  • the invention solves this problem in that the profile on a as. only Lärgsgurt provided base plate and, as is known, is embedded in elastic filler. Due to the combination of the profile with a single longitudinal belt and the connection points between the profile and the belt, which are limited to transverse lines, a composite body of high torsional rigidity and little impaired bending softness is created, so that the core insert desired for ski construction is obtained in a simple manner.
  • the torsional stiffness can be selected by choosing the profile, by varying the wall thickness, profile profile, profile height, profile structure, material, etc. can be changed within wide limits and adapted to the desired conditions, and the achievable flexibility can be influenced within a wide range by the design of the base plate and the properties of the chosen filler material.
  • Torsional rigidity and flexibility are largely independent of each other, since it makes the connection along transverse lines between the profile and base plate hardly noticeable with regard to the bending properties of the composite body, but the profile with its individual profile elevations, together with the base plate through this connection, forms bending-resistant associations oriented transversely to the longitudinal direction of the ski, which have a correspondingly high level Ensure torsional rigidity and an optimal adjustment of the strength course over the entire length of the ski.
  • the filling material has a vibration-damping effect and allows the absorption or compensation of the profile movements that occur during bending.
  • the core insert according to the invention thus allows the construction of a particularly torsionally rigid ski even with a high degree of flexibility and offers optimal conditions for ski construction. Of course, this insert could also be used for other construction elements that require flexibility and torsional rigidity.
  • the base plate and / or the profile is broken through like a grid.
  • This opening of the profile or the base plate not only saves material and weight, but also allows the combination with additional strand material to increase the bending strength, which strand material can be passed through the perforation of the ski length.
  • These openings can be made as desired, e.g. be punched, but the profile can also be formed from the start from appropriately perforated material or mesh material.
  • a core insert (1) which consists of a base plate (2) and a profile (3) in the manner of a composite body.
  • the profile is zigzag-shaped in the longitudinal direction of the ski and rigidly connected to the base plate (2) along the edges (4) which sit on the base plate (2) and represent the mutual lines of contact, so that this insert (1) allows the construction of a ski , which is correspondingly flexible, but is torsionally rigid to the desired extent.
  • the profile (3) is embedded in the ski in an elastic filling material, which on the one hand can influence the bending properties itself and on the other hand the profile movements arising during bending can be absorbed or a damping effect for bending vibrations is achieved.
  • the torsional strength properties can be adapted to a wide variety of conditions and requirements and by suitable changes in the profile course, these strength properties can also be varied according to the ski length.

Abstract

1. Ski comprising a torsion resistant core layer (1) in the nature of a composite body consisting of at least one plate-shaped longitudinal supporting strap (2) and a zigzag-shaped or corrugated profile (3), the profile (3) and the longitudinal supporting strap (2) being connected to each other under line contacts extending cross to the longitudinal direction of the ski and the profile (3) being embedded in elastic filling material, characterized in that the profile (3) is placed on a base plate (2), provided as single longitudinal supporting strap, and connected rigidly to the base plate (2).

Description

Die Erfindung betrifft einen Ski. od. dgl.. mit einer torsionssteifen Kerneinlage in Art eines aus mindestens einem plattenförmigen Längsgurt und einem zick-zack- oder wellenförmigen Profil od. dgl. bestehenden Verbundkörpers, wobei Profil und Längsgurt unter quer zur Skilängsrichtung verlaufenden Linienberührung miteinander verbunden sind.The invention relates to a ski. or the like .. with a torsionally rigid core insert in the manner of a composite body consisting of at least one plate-shaped longitudinal belt and a zigzag or undulating profile or the like, the profile and the longitudinal belt being connected to one another with line contact running transversely to the longitudinal direction of the ski.

Für die Fahreigenschaften eines Skis sind vor allem seine Biegesteifigkeit und seine Torsionsfestigkeit von Bedeutung, wobei die Biegesteifigkeit Gleiteigenschaften, Laufruhe, Anpassungsmöglichkeiten an Bodenwellen u. dgl. beeinflußt und die Torsionsfestigkeit vor allem für das Verhalten des Skis beim Kanteneinsatz maßgebend ist. Um nun diese für das Verhalten des Skis so wichtigen Eigenschaften entsprechend beeinflussen zu können, gibt es für den Ski Kerneinlagen verschiedenster Art, und auch Verbundkörper mit in Form eines Fachwerkes zwischen Ober- und Untergurt eingesetzten Zick-Zackprofilen wurden bereits vorgeschlagen. Diese Einlagen aber, seien es nun durchgehende Vollkörper oder Ober-und Untergurt aufweisende Fachwerkkörper, bringen bisher stets eine relativ große Ab- hängigkeit der Biege- und Torsionseigenschaften vonehander mit sich und erlauben keine freie Wahl der Torsions- bzw. Biegefestigkeit, so daß bei bekannten Einlagen immer eine Biegeweichheit auch mit einer höheren Torsionsfähigkeit und eine Torsionsfestigkeit auch mit einer Biegesteifheit Hand in Hand gehen und die Ausbildung eines biegeweichen aber torsionsfesten Skis nicht so ohne weiteres erreichbar ist.The flexural rigidity and torsional strength are of particular importance for the skiing properties of a ski, the flexural rigidity sliding properties, smooth running, adaptability to bumps and the like. The like. Influenced and the torsional strength is decisive above all for the behavior of the ski when using edges. In order to be able to influence these properties, which are so important for the behavior of the ski, there are various types of core inserts for the ski, and composite bodies with zigzag profiles inserted in the form of a truss between the upper and lower flange have already been proposed. These deposits, however, be it through full-body or upper and lower flange having timbered body bring hitherto always been a relatively large waste h ä dependence of bending and torsion vonehander with it and do not allow free choice of torsion and bending strength, so that with known inserts, a softness of bending always goes hand in hand with a higher torsional ability and a torsional strength also with a bending stiffness, and the formation of a flexible but torsion-resistant ski is not so easily attainable.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Mängel zu beseitigen und einen Ski der eingangs geschilderten Art zu schaffen, dessen Kerneinlage ohne besonderen Konstruktionsaufwand die weitgehend voneinander unabhängige Wahl der Torsions- und Biegeeigenschaften des Skis ermöglicht.The invention is therefore based on the object to overcome these shortcomings and to create a ski of the kind whose core deposit without any special design effort largely independent choice of the torsion - allows the ski and bending properties.

Die Erfindung löst diese Aufgabe dadurch, daß das Profil auf eine als. einziger Lärgsgurt vorgesehene Grundplatte aufgesetzt und, wie an sich bekannt, in elastisches Füllmaterial eingebettet ist. Auf Grund der Kombination des Profils mit einem einzigen Längsgurt sowie der sich auf Querlinien beschränkenden Verbindungsstellen zwischen Profil und Gurt entsteht ein Verbundkörper hoher Torsionssteifigkeit und wenig beeinträchtigter Biegeweichheit, so daß sich auf einfache Weise die für den Skibau gewünschte Kerneinlage ergibt. Die Torsionssteifigkeit kann dabei durch entsprechende Wahl des Profils, durch Variation der Wandstärken, des Profilverlaufes, der Profilhöhe, des Profilaufbaues, des-Werkstoffes u.s.w. in weiten Grenzen verändert und an die gewünschten Bedingungen angepaßt werden, und die erreichbare Biegeweichheit läßt sich durch die Ausgestaltung der Grundplatte und die Eigenschaften des gewählten Füllmaterials innerhalb großer Bereiche beeinflussen.The invention solves this problem in that the profile on a as. only Lärgsgurt provided base plate and, as is known, is embedded in elastic filler. Due to the combination of the profile with a single longitudinal belt and the connection points between the profile and the belt, which are limited to transverse lines, a composite body of high torsional rigidity and little impaired bending softness is created, so that the core insert desired for ski construction is obtained in a simple manner. The torsional stiffness can be selected by choosing the profile, by varying the wall thickness, profile profile, profile height, profile structure, material, etc. can be changed within wide limits and adapted to the desired conditions, and the achievable flexibility can be influenced within a wide range by the design of the base plate and the properties of the chosen filler material.

Torsionssteifigkeit und Biegeweichheit sind weitgehend voneinander unabhängig, da sie die Verbindung entlang querliegender Linien zwischen Profil und Grundplatte bezüglich der Biegeeigenschaften des Verbundkörpers kaum bemerkbar macht, das Profil mit seinen einzelnen Profilerhebungen aber durch diese Verbindung zusammen mit der Grundplatte quer zur Skilängsrichtung orientierte biegefeste Verbände bildet, die eine entsprechend hohe Torsionssteifigkeit und eine optimale Anpassungsmöglichkeit des Festigkeitsverlaufes über die gesamte Skilänge gewährleisten. Außerdem gibt das Füllmaterial eine schwingungsdämpfende Wirkung und erlaubt die Aufnahme bzw. den Ausgleich der beim Biegen auftretenden Profilbewegungen. Die erfindungsgemäße Kerneinlage gestattet somit die Konstruktion eines besonders torsionssteifen Skis auch bei hoher Biegeweichheit und bietet optimale Voraussetzungen für den Skibau. Selbstverständlich könnte diese Einlage aber auch bei anderen Konstruktionselementen eingesetzt werden, bei denen Biegeweichheit und Torsionssteifigkeit erforderlich sind.Torsional rigidity and flexibility are largely independent of each other, since it makes the connection along transverse lines between the profile and base plate hardly noticeable with regard to the bending properties of the composite body, but the profile with its individual profile elevations, together with the base plate through this connection, forms bending-resistant associations oriented transversely to the longitudinal direction of the ski, which have a correspondingly high level Ensure torsional rigidity and an optimal adjustment of the strength course over the entire length of the ski. In addition, the filling material has a vibration-damping effect and allows the absorption or compensation of the profile movements that occur during bending. The core insert according to the invention thus allows the construction of a particularly torsionally rigid ski even with a high degree of flexibility and offers optimal conditions for ski construction. Of course, this insert could also be used for other construction elements that require flexibility and torsional rigidity.

In einer günstigen Weiterbildung der Erfindung ist die Grundplatte und/oder das Profil gitter-artig durchbrochen. Diese Durchbrechung des Profils bzw. der Grundplatte bringt nicht nur eine Material- und Gewichtseinsparung mit sich, sondern erlaubt darüber hinaus die Kombination mit zusätzlichem Strangmaterial zur Erhöhung der Biegefestigkeit, welches Strangmaterial durch die Lochung der Skilänge nach hindurchgeführt werden kann. Diese Durchbrech-ungen sind beliebig herstellbar, sie können z.B. gestanzt sein, das Profil kann aber auch von vornherein aus entsprechend gelochtem Material oder Gittermaterial geformt sein.In a favorable development of the invention, the base plate and / or the profile is broken through like a grid. This opening of the profile or the base plate not only saves material and weight, but also allows the combination with additional strand material to increase the bending strength, which strand material can be passed through the perforation of the ski length. These openings can be made as desired, e.g. be punched, but the profile can also be formed from the start from appropriately perforated material or mesh material.

In der Zeichnung wird in einem sherascen Schaubild ein Ausführungsbeispiel einer erfindungsgemäßen Kerneinlage dargestellt.In the drawing, an embodiment of a core insert according to the invention is shown in a sherascen diagram.

Um insbesondere bei Skiern eine gewisse Biegeweichheit mit vergleichsweise hoher Torsionssteifigkeit kombinieren zu können, ist eine Kerneinlage (1) vorgesehen, die in Art eines Verbundkörpers aus einer Grundplatte (2) und einem Profil (3) besteht. Das Profil ist in Skilängsrichtung zick-zack-förmig und entlang der auf der Grundplatte (2) aufsitzenden, die gegenseitigen Berührungslinien darstellenden Kanten (4) mit der Grundplatte (2) starr verbunden, so daß diese Einlage (1) den Aufbau eines Skis erlaubt, der entsprechend biegeweich, aber im gewünschten Maße torsionssteif ist. Das Profil (3) ist im Ski in ein elastisches Füllmaterial eingebettet, wodurch einerseits die Biegeeigenschaften selbst beeinflußbar sind und anderseits die beim Biegen entstehenden Profilbewegungen aufgenommen werden können bzw. eine dämpfende Wirkung für Biegeschwingungen erreicht wird. Durch entsprechende Gestaltung und Dimensionierung des Profils (3) können die Torsionsfestigkeitseigenschaften an verschiedenste Bedingungen und Anforderungen angepaßt werden und durch geeignete Änderungen des Profilverlaufes können diese Festigkeitseigenschaften auch der Skilänge nach variiert werden.In order to be able to combine a certain flexural softness with a comparatively high torsional rigidity, in particular in the case of skis, a core insert (1) is provided which consists of a base plate (2) and a profile (3) in the manner of a composite body. The profile is zigzag-shaped in the longitudinal direction of the ski and rigidly connected to the base plate (2) along the edges (4) which sit on the base plate (2) and represent the mutual lines of contact, so that this insert (1) allows the construction of a ski , which is correspondingly flexible, but is torsionally rigid to the desired extent. The profile (3) is embedded in the ski in an elastic filling material, which on the one hand can influence the bending properties itself and on the other hand the profile movements arising during bending can be absorbed or a damping effect for bending vibrations is achieved. By appropriate design and dimensioning of the profile (3), the torsional strength properties can be adapted to a wide variety of conditions and requirements and by suitable changes in the profile course, these strength properties can also be varied according to the ski length.

Claims (2)

1. Ski od. dgl. mit einer. torsionssteifen Kerneinlage in Art eines aus mindestens einem plattenförmigen Längsgurt und einem zick-zack-oder wellenförmigen Profil od. dgl. bestehenden Verbundkörpers, wobei Profil und Längsgurt unter quer zur Skilängsrichtung verlaufenden Linienberührungen miteinander verbunden sind, dadurch gekennzeichnet, daß das Profil (3) auf eine als einziger Längsgurt vorgesehene Grundplatte (2) aufgesetzt und wie an sich bekannt, in elastisches Füllmaterial eingebettet ist.1. Ski or the like with a. Torsionally rigid core insert in the manner of a composite body consisting of at least one plate-shaped longitudinal belt and a zigzag or undulating profile or the like, the profile and the longitudinal belt being connected to one another under line contacts running transversely to the longitudinal direction of the ski, characterized in that the profile (3) a base plate (2) provided as the only longitudinal belt is placed and, as is known per se, embedded in elastic filling material. 2. Ski od. dgl. nach Anspruch 1, dadurch gekennzeichnet, daß die Grundplatte und/oder das Profil gitter-artig durchbrochen sind bzw. ist.2. Ski od. Like. According to claim 1, characterized in that the base plate and / or the profile are or is broken like a grid.
EP19820107505 1981-08-20 1982-08-18 Ski Expired EP0073009B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT362981A AT371344B (en) 1981-08-20 1981-08-20 SKI OR THE LIKE.
AT3629/81 1981-08-20

Publications (2)

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EP0073009A1 true EP0073009A1 (en) 1983-03-02
EP0073009B1 EP0073009B1 (en) 1986-04-23

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AT (1) AT371344B (en)
DE (1) DE3270763D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647061A (en) * 1985-11-21 1987-03-03 Girard Donald A Ski stiffened in torsion by a bellows-like member
AT504001B1 (en) * 2005-02-08 2011-07-15 Salomon Sa SLIDING BOARD OR ROLLBOARD WITH COMPOSITE STRUCTURE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387331B (en) * 1986-03-20 1989-01-10 Rohrmoser Alois Skifabrik Method for manufacturing a component which can be used as a core for skis

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1290278A (en) * 1961-03-01 1962-04-13 Process for manufacturing skis and skis obtained by said process
CH376410A (en) * 1960-04-14 1964-03-31 Riha Hans Metal skis
DE2047705A1 (en) * 1970-09-28 1972-03-30 Wintersberger, Lutz, 8024 Deisenhofen Ski substructure
CH575769A5 (en) * 1974-02-12 1976-05-31 Revaz Francis Ski of composite sandwich construction - increases resistance to torsion and reduces vibrations along length due to uneven snow surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH376410A (en) * 1960-04-14 1964-03-31 Riha Hans Metal skis
FR1290278A (en) * 1961-03-01 1962-04-13 Process for manufacturing skis and skis obtained by said process
DE2047705A1 (en) * 1970-09-28 1972-03-30 Wintersberger, Lutz, 8024 Deisenhofen Ski substructure
CH575769A5 (en) * 1974-02-12 1976-05-31 Revaz Francis Ski of composite sandwich construction - increases resistance to torsion and reduces vibrations along length due to uneven snow surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647061A (en) * 1985-11-21 1987-03-03 Girard Donald A Ski stiffened in torsion by a bellows-like member
AT504001B1 (en) * 2005-02-08 2011-07-15 Salomon Sa SLIDING BOARD OR ROLLBOARD WITH COMPOSITE STRUCTURE

Also Published As

Publication number Publication date
AT371344B (en) 1983-06-27
EP0073009B1 (en) 1986-04-23
DE3270763D1 (en) 1986-05-28
ATA362981A (en) 1982-11-15

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